Polymarket US adds a $25 trading credit when a new user deposits at least $10 with your referral code. The other cards are different products.
Updated October 10, 2026 · Figures from each venue’s own page · Desk briefing · Our Editorial Standards
Referral code is your username inside the Polymarket US app. A new user enters it at signup and deposits at least $10. You both get a $25 promotional trading credit, up to 50 friends. The credit trades and pays fees. It is not cash you withdraw. The button below opens polymarket.com with our referral. That link does not type the US username for you.
International book. No deposit bonus. Referrer needs $10,000 lifetime volume. 10% of net fees on direct referrals, 5% on indirect, paid daily in pUSD, for 30 days or until Platinum. Open uses our referral link.
US referral and promo credits. The dollar figure is on the offer in the app. “Up to” is a cap, not a promise. A code can be added within 72 hours. We do not publish affiliate codes.
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Code COMMFREE at registration. New UK, Ireland and Malta customers. First deposit at least £10 or €10 by debit card or Instant Banking. 0% commission on bets that settle within 60 days. Skip the code and the rate is 2%.
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US politics, position caps. No welcome bonus in this index.
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Free play balance at signup. Not cash. Open uses our referral link.
Forecasting points. No deposit.
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US event contracts. Read any promo on their site.
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BNB event book. Any credit is on the app.
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Sports protocol, not one book. An app on top of it may show a free bet. No Azuro-wide deposit match in this index.
ReviewGammaPredict does not pay these offers and does not take bets. Full terms and the CFTC timing are in the 10 October briefing.
Polymarket US does. Campaign A pays $25 in promotional trading credit to you and to a new user who signs up with your username and deposits at least $10. The credit is for trades and fees, not a cash withdrawal. International Polymarket does not add money to a deposit. It pays the referrer a share of net trading fees.
No. Kalshi’s amount depends on the offer in the app, and “up to” is a maximum. Smarkets publishes code COMMFREE: 0% commission for 60 days for new UK, Ireland and Malta customers. That is a fee waiver, not cash on the deposit.
No. Each venue pays its own offer. GammaPredict does not issue codes and does not take bets.